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Google Launches SynthID Detector to Verify AI-Generated Media Made With Its Tools

October 7, 2026 at 10:01 EDT

Security
Media Generation

Google has launched SynthID Detector, a verification portal designed to identify whether media was generated with Google AI by scanning for SynthID watermarks across images, audio, video and text. The tool arrives as synthetic media becomes harder to distinguish from camera-captured or human-made work, and as platforms, publishers and businesses look for more reliable provenance signals.

May 20, 2025 · Google

A watermark check for AI media

SynthID Detector scans images, audio, video and text for hidden Google AI watermark signals, giving investigators another way to assess media provenance.

10B+

pieces watermarked by launch

100B+

images and videos later reported

50M

Gemini verification uses reported

The scale of Google-watermarked media

10 blocks × 10B

100B+ images and videos

Google later reported SynthID had been applied at internet scale, with 60,000 years of audio also watermarked. The visual uses one stacked segment for every 10 billion images and videos.

How a check works

Upload media

Image, audio, video or text enters the portal.

→

Scan for SynthID

The system looks for hidden watermark signals.

→

Show likely portions

Results can highlight segments or areas most likely watermarked.

Where it helps

A useful signal for newsrooms, fact-checkers, platforms and enterprise workflows that need to assess suspicious files before acting.

Where it stops

A missing watermark does not prove media is human-made, and fragmented adoption means no single detector covers every AI system.

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